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SHEDDING MECHANISM POR-LOOMS. No. 527,093. 4 Pa'tente 100t..9; 1894.

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H. WENZEL.

SHBDDING MECHANISM FOR LOOMS. No. 527,093. Patented Oct. 9, L894.

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(No Model.) 5 Sheds-Sheet 4. H. WENZEL.

SHBDDING MECHANISM FOR LOOMS.

No. 527,093. Patented 0011.9, 1894.

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' tire machine.

Y NITED STATES "PATENT OFFICE.

HERMANN WENZEL, OF SCHCNLINDE, AUSTRIA-HUNGARY.

SHEDDING MECHANISM FOR LOOMS.

SIEOIFICA'IION forming part of Letters Patent No. 527,093, dated October9, 182 34.

Application filed October 11,1893. strain). 487,893. (No model.)

To all whom it may concern.-

Be it known that I, HERMANN WENZEL, a subject of the King of Bohemia,Emperor of Austria-Hungary, and a resident of Schonlinde, in the Kingdomof Bohemia, Austria- I-Iungary, have invented certain new and usefulImprovements in Shedding Mechanism for Looms, of which the following isa true speci fication.

The present invention relates to improve-' ments in looms with theobject of reducing the necessary number of cards for producing anyparticular pattern. J acquards as at present constructed require-a largenumber of cards to produce a large design, as only one longitudinal rowof perforations of each card Certain machines have already beenconstructed to avoid this objection, in which the needles are broughtopposite to the'varions rows of perforations in one card successively,the cardcylinder turning only when all the rows have comeinto use. Thepresent machine uses a similar arrangement of the needles, and further anew mechanism for engaging and disengaging the turning clutch of thecard-cylinder.

In the drawings :Figure 1, is a side view of a part of the mechanismincluding the card cylinder, the pawls foroperating the same and themeans for controlling the pawls. Fig. 2, is a detail view of the cam foroperating the needle board.- Fig. 3 is a detail of the needle board withits operating means. Fig. 4, is a front view of part of the mechanismshown in Fig. 1. Fig. 5, is a front view of the card cylinder. Fig. 6,is a detail view of a card. Fig. 7, is a diagrammatic view of the on-Fig. 9, is a front view of the needle board with operating meanstherefor. Fig. 10, shows the chain for controlling one of the movements,and Figs. 11,and 12. are views of a controlling cam.

H W is the main driving shaft of the machine, from which the lovers is,seated on the fixed shaft 10 Figs. 1 and 7 are actuated by means ofwell-known intermediate connections consisting of the eccentric b on theshaft H W Fig. 7 the rod 0 Figs. 1 and 7 extending'therefrom to thelever d to operate the double levers f f fixed on the shaft to from Fig.8, is a view of a detail.

which the rods 9 extend to connect with, the blades h 71., Figs. 1 and7, moving in guides g of the frame and designed to engage the teeth t"2' on'the lifting hooks t'. From the rods 9 the rods g'extend to thebolts 9 which are thus raised and'lowered in the guides g The liftinghooks are connected with the lovers K and are. pressed by the springs 7&Fig. 1. Through this machinery the levers k are operated and theselevers are connected with the heddle frames W, Fig. 7, as shown and alsowith the pair of levers 10 W, by which the frames are raised andlowered. The springs K referred to press the lifting hooks to the left,said springs being secured to the lifting hooks and to the ends of thelevers K.

.The card cylinder m is rotated by the hook pawls W H, W H pivoted at nm to the frame, said cylinder being carried and reciprocated by theslides Z running on the rollers Z to which slides movement is given bythe lever d mounted on a shaft D in the frame, the leverd' being alsofixed on the shaft D,

the rodc' connecting the lever d and the ecbringing the needlessuccessively from one to the other row of perforations of the card. A

great economy in pattern cards is the result,

while each card can be used for all the wefts of one pattern,it beingonly necessary to turn the cylinder when a new pattern is to be made, orwhen there are more wefts to the pattern than rows of perforations in a.card. In order to, be able to effect this, I provide, besides thearrangement for displacing the needle-board, a special arrangement forengaging and disengaging the turning pawls of the card cylinder.

The needle-board n is provided witha split lifting rod St, Figs. 3, 4, 7and 9 which can rise and sink on a cam E by means of a guide roller B,Fig. 3. The cam is attached to a shaft 10 The rod St passes over thisshaft by means of its slit a Fig. 3. Guides n are also provided at bothends of the needle board Figs. 4 and 9 for guiding the needle board inits vertical movement. The shaft w receives its motion through a lever p(Fig. 1) and pawlW H (Figs. 1 and 3), which gears in a pin-wheel p fixedon shaft L02, (Figs. 1,3 and 4.) The cam E (Fig. 2) has as many steps I,II, III, IV, V, VI, Fig. 2 as rows of perforations are provided in thecard, and for each weft one of these steps is brought under the guideroller R, in order to bring the needles n of the board at in theirproper position against the card cylinder. If cam E is with its loweststep I under roller R, then the needles are opposite the lowest row ofperforations, and so on with the second, third, 850., rows.

If cards having more or less than six rows of perforations are used thenthe cam E must be replaced by another cam corresponding to the number ofrows of perforations for which moval of one cam and the substitution ofanother. It will then be necessary to have a different angular rotationof shaft w for each cam by pawl W H In order to be able to efieot thisrotation for a number of cams by means of one pin-disk 19 this latter isprovided with so many concentric rows of holes as there are cams, andeach row has as many holes as the corresponding cam has steps. The rowof holes on disk 19 which comes into use is filled out with pins orbolts, behind which the pawl W H catches, while the other rows of holesremain free. In Fig. 3 three concentric rows with six, five and fourholes are shown so that here the needle board can be operated with threesizes of cams and cards having six, five or four rows of holes may beused.

For the cam E as many stop disks S S S are attached to shaft- 20 as camsare used (Figs. 4 and 8), and each disk has so. many pressure surfacesas the corresponding cam has steps for the roller R. On one surfacepresses a pressure lever H held down by a spring F. This lever turns andslides on a long frame-pivot b so that it can be pushed over the disk atthe moment in operation. The spring F thereby receives a more orlessinclined position and is slightly extended.

After every Weft the cam E receives a rotation from the main shaft H Wthrough the connecting rod 0, levers dp on shaft D and pawl W H Fig. 1,so that the needle-board is lifted by a step by step motion. As soon asthis upward step by step motion has been completed, the needle-boardfalls back to its lowest position after the next turn of the cam,

and the pattern is either then repeated without a rotation of thecylinder taking place, or another pattern is produced for which arotation of the cylinder is necessary, bringing another card before theneedles. This is done by the following feeding-device.

On the needle board cam shaft 20 are seated, outside the frame near theweavers stand, one high cam E and one low cam E cast in one piece,(Figs. 1, 4, 11 and 12.) Resting on the low cam E is an arm v which isfirmly connected to a lever Z behind the arm '0 which is pivotallyconnected to thelever. Lever Z works loosely on the shaft 10' and isconnected at its free end by a draw rod 0 with the two pawls H W and H Wwhich are connected by the link 0, so that when one clutch is thrown inthe other is thrown out of action. The pivoted arm n carries a finger orpin F, Figs. 1, 4:, 11, and 12. Usually the two armsmand v are under theinfluence of the low cam E (Fig.1l) and the lever Z is held up by thearm n, or, if the cam E comes with its iower surface under the arm '0',the lever Z is still held up by a special lever a (Fig. 1) in such amanner that the two pawls W H and W H are out of gear with the pins m ofthe cylinder disk m The cam E as shown in Fig. 1 is formed with anabrupt shoulder connecting what is termed herein the lower surface orlow part with the high part.

If a rotation of the card cylinder is to be made, then the'feeding-deviceproper comes into eifect.

A link-chain is led over two chain-Wheels s s, of which the one isloosely arranged together with a polygonal feeding-disk r on an axle(Fig. 4). This axle is immovably fixed in a cleft rod (1 while the axleforthe other wheel .9 has an adjustable bearing in the rod q, so thatdifferent lengths of chain with especial link-arrangements can be usedwhen required. Rod q can be turned on the pivot .s' and held by nuts onthe frame in order to bring the link-chain device in relation with thepawl operating mechanism described above. The links of the chain aremade in the forms,1, 2 and 3 as shown in Fig. l O-that is the links 1are plain and the links 2, 3 are formed with studs or projections, thestuds of the links 2 being on one side or edge of the chain while thestuds on the other links 3 are on the other side and out of linetherewith-and these links are led past two buttons 25 :6 under tensionof slight coil springs t This is effected by means of a bolt 19,attached to the disk 19 which, during each rotation of the disk ])2,engages the periphery of and turns the polygonal disk 'r the length ofone link. As the disk 19 turns the bolt or pinp is brought into contactwith one of a series of pins 19 shown in Fig. 1 projecting from the faceof the disk 1' and the latter is thus turned. In order to prevent thepolygonal under the arm @Qthe lever Z sinks and the upper pawl W H gearsbehind a pin m of the cylinder m. If the cylinder is now withdrawn fromthe row of needles, it receives a rotation in a forward sense and a newpattern card takes its position before the neodles. If on the otherhand, a link of the form 3, comes against button F, then the lever acarrying the button presses the finger F of the arm 1: and consequentlyarm '0 itself, forward. Arm o comes in contact with the high cam E (Fig.12) which on its part raises the lever Z and the pawl W 2 H The lowerpawl W H gears then behind a pin m of the cylinder which is thentnrnedbackward during its horizontal movement. By this means a card which hasalready been used is brought before the row of needles.

It will be noticed by Figs. 11 and 12 that.

the relative lengths of the arms o and o are such that the arm 11 isslightly raised from contact with the cams when the parts are in theposition shown with the arm 1; resting on the cam and the arm 12 is thenfree to assume its normal position after having been acted upon by thehigh cam E This return to normal position is effected through thecounterweight D shown in Figs. 4, 11 and 12 attached to the arm '0 t Thearrangement of the links of the chain to be used is according to thepattern to be produced, and the feeding device 7", s, s, q, is only thenin use when several patterns are to be produced, that is when severalpattern cards are required, or when the wefts in one pattern are morenumerous than the rows of perforations in one card so that another cardmust be used. If however, the feeding device is not required to be used,the cleft rod is turned on pivot sso that the polygonal disk 1' nolonger stands. in relation with the bolt 19. The spring won the draw-rod0 gives a certain elasticity to the pawls, said draw rod passing throughthe lever Z and having a button at its upper end resting on said spring0: which encircles the rod and bears on the lever Z as clearly shown inFig. 1.

What I claim, and desire to secure by Let ters Patent of the UnitedStates, is

1. In combination in a loom, the card cylinder, the adjustable needleboard, the shaft 112 the cam E thereon means for turning said shaft, theconnection from said cam to the needle board to move the needle boardstep by step, the pawls for operating the card cylinder, the means forreciprocating the cylinder against the pawls to turn the cylinder, thelever Z connected to the pawls for throwing the same into and out ofaction, the cam for operating the lever Z means for throwing the lever Zinto and out of connection with the cam, said .means comprising thechain,

means for operating the same and the devices between the chain and thelever Z, substantially as described. v v

2. In combination, in a loom, the card cylinder, the adj nstable needleboard, the shaft w*, the cam E thereon means for turning the shaft, theconnection from the cam to the needle board the pawls for operating thecard cylinder, the means for reciprocating the cylinder against thepawls to turn the cylinder,

the lever Z connected to the pawls for throw-.

HERMANN WENZEL.

Witnesses:

J OSEF HERBST, EMIL FRITSCHE.

